Thanks all and thanks Mike for the info. Only real reason I"m asking is as I have some leftover Z2 and don't really want to waste it. Is there a specific reason not to put collinite over Z2 or just it's a waste of time/resources to do so due to the excellent durability of Z2? Thanks again...
Is it possible to clay, polish, then apply zaino show car polish, and top it off with Collinite 915? Would that be the correct sequence, zymol then protect that with collinite? I still have a good amount of zaino z2 show car polish left and wondering if I can top that with C915? Thanks very much.